I took the PPS-43 (technically a pistol by BATFE) to the range today with some new S&B 7.62x25 rounds to break the gun in. About 1 in 5 of the rounds had insufficient striking from the firing pin which didn't ignite the primer. I examined the primers and saw that the pin strikes were quite light and then took the bolt out to examine the pin action.
When the stiker pin is fully depressed, the firing pin doesn't extend enough to consistently ignite these primers (which on most 7.62x25 rounds are pretty hard to begin with). The original PPS-43's were open bolt submachine guns, so the early modified semi BCG's didn't always have sufficient firing pins to light the primers.
I've ordered a parts kit for the PPS-43 which includes a complete BCG and hopefully this later version will have a better FP, but I can't seem to find just the firing pin to replace the original. Does anyone know a compatible firing pin that would fit the PPS-43? Any help would be greatly appreciated...thanks!
When the stiker pin is fully depressed, the firing pin doesn't extend enough to consistently ignite these primers (which on most 7.62x25 rounds are pretty hard to begin with). The original PPS-43's were open bolt submachine guns, so the early modified semi BCG's didn't always have sufficient firing pins to light the primers.
I've ordered a parts kit for the PPS-43 which includes a complete BCG and hopefully this later version will have a better FP, but I can't seem to find just the firing pin to replace the original. Does anyone know a compatible firing pin that would fit the PPS-43? Any help would be greatly appreciated...thanks!
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